Security double-glazed units in Cheltenham: what will it cost?
Guide prices for security double-glazed units in Cheltenham are £174 to £594 including VAT (£145 to £495 plus VAT) per unit for supply and fitting. We confirm a fixed price in writing after a free survey, before any glass is ordered.
A security double-glazed unit is a sealed unit in which one or both panes are laminated glass, usually the inner pane, so the window keeps its insulation but resists being broken through. It fits the same frame as a standard unit and is the simplest way to add security to modern windows and doors.
Specification at a glance
- Toughened outer pane where safety glass is required
- 24 mm, 28 mm and other overall thicknesses to suit frames
- Security glazing tape or clips where beads are external
- Laminated inner pane, outer pane or both
- Warm-edge spacer bars in black, grey or white
- Low-E coating and argon fill for insulation
Fitting in Cheltenham and nearby
Whether you are in central Cheltenham or at the edge of the GL50 district, we can arrange a survey. Nearby Tewkesbury and Gloucester are covered too.
Gloucestershire pairs Cheltenham's Regency terraces and shopping promenades with Gloucester's docks and city centre, and Cotswold-stone towns where conservation areas shape window changes.
Typical settings for security double-glazed units:
- Glazed back and side doors
- Patio doors and bifolds
- Replacing misted or damaged units
- Windows in flats on walkways and balconies
Getting the right glass for your building
Overall thickness
The new unit must suit the frame's glazing rebate. If your frames only take thin units, we use thinner laminates or adjust the beads.
Which pane is laminated
Laminating the inner pane is the usual security choice. Laminating both panes adds protection on high-risk elevations.
What the rules say in England
Security rules for new homes
Approved Document Q has applied to new homes in England since 1 October 2015. Easily accessible doors and windows, meaning any part within 2 m vertically of the ground or another accessible surface, should meet PAS 24 or an equivalent, and glazing in doors and in windows within 400 mm of a door should be laminated to at least BS EN 356 P1A. It does not apply when you change the glass in an existing home, although it is a sensible benchmark.
Safety glass in critical locations
In England, section 5 of Approved Document K treats glazing in doors and in side panels within 300 mm of a door edge, from floor level up to 1,500 mm, and any other glazing below 800 mm, as a critical location. Glass there should break safely, be robust, or be guarded. Laminated or toughened glass meeting BS EN 12600 class 3 is the usual answer, rising to class 2 for door and side-panel panes wider than 900 mm.
How it works
- Tell us about the glazing
- Survey, measuring and frame check
- Written quote naming the glass
- Fitting and handover
Security double-glazed units in Cheltenham: questions
Do you cover Tewkesbury as well as Cheltenham?
Yes. As well as Cheltenham, we can arrange surveys in nearby Tewkesbury, Gloucester and Stroud. Dates depend on installer availability.
Can I just replace the glass and keep my frames?
Yes, if the frames are sound. We measure each unit, make security units to the same size and fit them into your existing frames.
Which pane should be laminated?
Usually the inner pane, so smashing the outer pane does not create an opening. On doors and low panes the outer pane is normally toughened to meet safety rules.
Will a laminated unit be heavier?
A little. A laminated pane weighs about the same as a solid sheet of the same thickness. On large opening sashes we check hinges and friction stays.
Security double-glazed units in nearby towns
Other glazing in Cheltenham
- Display case security glass
- Security glass for home windows
- Broken glass replacement
- Laminated glass retrofit
- Patio and bifold door security glass
- Laminated roof and conservatory glass
Get a guide price now and book your free survey in Cheltenham.
